diff --git a/cmd/client/txgen/README.md b/cmd/client/txgen/README.md
index 02812a2eb..59afcbf74 100644
--- a/cmd/client/txgen/README.md
+++ b/cmd/client/txgen/README.md
@@ -1,2 +1,2 @@
 The txgen program is used to simulate transactions and hit the Harmony network to loadtest its performance and robustness.
-You can send txns to specific shards 1,2,3 or to shard 0. Sending it to shard 0, broadcasts txns to all the shards.
+You can send txns to specific shards 1,2,3 or to shard 0. Sending it to shard 0, broadcasts txns to all the shards. (TODO: Investigate why?)